Yuxuan Zhang

I’m a research intern at Hao AI Lab, advised by Prof. Hao Zhang and Prof. Haojian Jin.

My research focuses on building useful AI agents and efficient LLM reinforcement learning systems.


Recent News

Feb 2025 Incoming to Google as a Software Engineering Intern
Jan 2025 LMGame-Bench: How Good are LLMs at Playing Games? is accepted to ICLR 2025

Projects

GitHub stars

LLM/VLM gaming agents and model evaluation through games

GRL

lead
GitHub stars

Multi-turn RL training system that post-trains LLMs via reinforcement learning on games

1M views

AI agent playing Ace Attorney game with 1 million views

Tunix

contribute
GitHub stars

A lightweight JAX-based library for streamlining LLM post-training


Publications

LMGame-Bench: How Good are LLMs at Playing Games?
ICLR 2026
Introduces **LMGame-Bench**, a unified Gym‑style benchmark that tests LLM agents across platformer, puzzle, and narrative games—addressing vision brittleness, prompt variance, and data contamination.
Paper Code
General Modular Harness for LLM Agents in Multi‑Turn Gaming Environments
ICML MAS Workshop 2025
Introduces a perception–memory–reasoning harness that consistently boosts LLM/VLM gameplay across classic and modern game suites, uncovering module‑specific performance patterns.
Paper

Experience

Education

2024 - Present
M.S. in Computer Science
University of California, San Diego
2020 - 2024
B.S. in Data Science
University of California, San Diego
Summa cum laude (top 2%)

Research Experience

Present
Research Intern
Hao AI Lab, UC San Diego
Previous
Research Intern
Scripps Research, La Jolla, CA

Teaching Experience

Fall 2025
Teaching Assistant
DSC204A: Scalable Data Systems, UC San Diego